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Abstract Title:

Mangiferin suppresses allergic asthma symptoms by decreased Th9 and Th17 responses and increased Treg response.

Abstract Source:

Mol Immunol. 2019 Aug 3 ;114:233-242. Epub 2019 Aug 3. PMID: 31386980

Abstract Author(s):

Chenxia Yun, Ming Chang, Guanghan Hou, Taijin Lan, Hebao Yuan, Zhiheng Su, Dan Zhu, Weiping Liang, Qiaofeng Li, Hongyan Zhu, Jian Zhang, Yi Lu, Jiagang Deng, Hongwei Guo

Article Affiliation:

Chenxia Yun

Abstract:

Mangiferin is the major bioactive ingredient in the leaves of Mangifera indica L., Aqueous extract of such leaves have been traditionally used as an indigenous remedy for respiratory diseases including cough and asthma in Traditional Chinese Medicine. Mangiferin was shown to exert its anti-asthmatic effect by modulating Th1/Th2 cytokines imbalance via STAT6 signaling pathway. However, compelling evidence indicated that subtypes of T helpers and regulatory T cells other than Th1/Th2 were also involved in the pathogenesis of asthma. In current study, we investigated the effects of mangiferin on the differentiation and function of Th9, Th17 and Treg cells in a chicken egg ovalbumin (OVA)-induced asthmatic mouse model. Mangiferin significantly attenuated the symptoms of asthma attacks, reduced the total number of leukocytes, EOS and goblet cells infiltration in lung. Simultaneously, treatment with mangiferin remarkably decreased the proportion of Th9 and Th17 cells; reduced the levels of IL-9, IL-17A; inhibited the expression of PU.1 and RORγt in lung. However, the proportion of Treg cells, the expression of IL-10, TGF-β1 and Foxp3 were increased by mangiferin. Our data suggest that mangiferin exerted anti-asthmatic effect through decreasing Th9 and Th17 responses and increasing Treg response in OVA-induced asthmatic mouse model.

Study Type : In Vitro Study

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Sayer Ji
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